Preparation of Zinc Phosphate Glass-Derived Hydrogels and Their Proton Conductivities


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When fine-sized 45ZnO·55P2O5 or 50ZnO·50P2O5 glass powders were mixed with distilled water, hydration immediately occurred, resulting in the formation of viscous hydrogels. 31P MAS-NMR spectra showed that the hydrogels contain orthophosphates and long-chain phosphates; no significant differences in their structures between the hydrogels were shown. The 45ZP gel and 50ZP gel showed high conductivities (e.g., 9.9 and 2.8 mS/cm, respectively, at 30°C). The conductivities were related to the proton amount in the hydrogel; the amount in the 45ZP gel was larger than that in the 50ZP gel. Electric double-layer capacitors (EDCs) were prepared using electrolytes consisting of the hydrogels. The specific capacities of the EDC cell for the 45ZP gel and 50ZP gel were 2.40 and 2.06 F/g, respectively. The possibility as an EDC electrolyte may be related to proton conductivities of the hydrogels.



Advanced Materials Research (Volumes 11-12)

Main Theme:

Edited by:

Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang




T. Akamatsu et al., "Preparation of Zinc Phosphate Glass-Derived Hydrogels and Their Proton Conductivities", Advanced Materials Research, Vols. 11-12, pp. 153-158, 2006

Online since:

February 2006




[1] T. Kasuga, T. Wakita, M. Nogami, M. Sakurai, M. Watanabe and Y. Abe: Chem. Lett. Vol. 30 (2001), p.820.

[2] Y. Daiko, T. Akamatsu, T. Kasuga and M. Nogami: Chem. Lett. Vol. 34 (2005), p.24.

[3] B.E. Conway: J. Electrochem. Soc. Vol. 138 (1991), p.1539.

[4] T. Akamatsu, T. Kasuga and M. Nogami: J. Ceram. Soc. Jpn. Vol. 114 (2006), p.92.

[5] T. Akamatsu, T. Kasuga and M. Nogami: J. Non-Cryst. Solids Vol. 351 (2005), p.691.

[6] E. Lippmaa, M. Magi, A. Samoson, G. Englehardt and A.R. Grimmer: J. Am. Chem. Soc. Vol. 102 (1980), p.4889.

[7] R.K. Brow: J. Non-Cryst. Solids Vol. 263&264 (2000), p.1.

[8] J.R. Van Wazer: Phosphorus and Its Compounds (Interscience, New York 1958).

[9] M. Nogami and Y. Abe: Phys. Rev. Vol. B55 (1997), p.12108.

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